Amazon Linux AMI update for tomcat8



Published: 2022-08-06
Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2022-25762
CVE-2022-29885
CWE-ID CWE-388
CWE-19
Exploitation vector Network
Public exploit Public exploit code for vulnerability #2 is available.
Vulnerable software
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Amazon Linux AMI
Operating systems & Components / Operating system

tomcat8
Operating systems & Components / Operating system package or component

Vendor Amazon Web Services

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Error Handling

EUVDB-ID: #VU63299

Risk: Medium

CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-25762

CWE-ID: CWE-388 - Error Handling

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to an error when handling WebSocket connections. If a web application sends a WebSocket message concurrently with the WebSocket connection closing, it is possible that the application will continue to use the socket after it has been closed. As a result, subsequent connections can use the same object concurrently and share data and/or other errors.

Mitigation

Update the affected packages:

noarch:
    tomcat8-jsp-2.3-api-8.5.81-1.91.amzn1.noarch
    tomcat8-javadoc-8.5.81-1.91.amzn1.noarch
    tomcat8-lib-8.5.81-1.91.amzn1.noarch
    tomcat8-webapps-8.5.81-1.91.amzn1.noarch
    tomcat8-8.5.81-1.91.amzn1.noarch
    tomcat8-el-3.0-api-8.5.81-1.91.amzn1.noarch
    tomcat8-log4j-8.5.81-1.91.amzn1.noarch
    tomcat8-docs-webapp-8.5.81-1.91.amzn1.noarch
    tomcat8-servlet-3.1-api-8.5.81-1.91.amzn1.noarch
    tomcat8-admin-webapps-8.5.81-1.91.amzn1.noarch

src:
    tomcat8-8.5.81-1.91.amzn1.src

Vulnerable software versions

Amazon Linux AMI: All versions

tomcat8: before 8.5.81-1.91


CPE2.3 External links

http://alas.aws.amazon.com/ALAS-2022-1627.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Data Handling

EUVDB-ID: #VU63225

Risk: Low

CVSSv3.1: 3.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C]

CVE-ID: CVE-2022-29885

CWE-ID: CWE-19 - Data Handling

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to perform DoS attack.

The vulnerability exists due to an error in documentation for the EncryptInterceptor, which incorrectly stated that it enabled Tomcat clustering to run over an untrusted network. A remote attacker can perform a denial of service attack against the exposed EncryptInterceptor.

Mitigation

Update the affected packages:

noarch:
    tomcat8-jsp-2.3-api-8.5.81-1.91.amzn1.noarch
    tomcat8-javadoc-8.5.81-1.91.amzn1.noarch
    tomcat8-lib-8.5.81-1.91.amzn1.noarch
    tomcat8-webapps-8.5.81-1.91.amzn1.noarch
    tomcat8-8.5.81-1.91.amzn1.noarch
    tomcat8-el-3.0-api-8.5.81-1.91.amzn1.noarch
    tomcat8-log4j-8.5.81-1.91.amzn1.noarch
    tomcat8-docs-webapp-8.5.81-1.91.amzn1.noarch
    tomcat8-servlet-3.1-api-8.5.81-1.91.amzn1.noarch
    tomcat8-admin-webapps-8.5.81-1.91.amzn1.noarch

src:
    tomcat8-8.5.81-1.91.amzn1.src

Vulnerable software versions

Amazon Linux AMI: All versions

tomcat8: before 8.5.81-1.91


CPE2.3 External links

http://alas.aws.amazon.com/ALAS-2022-1627.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.



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